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JIANGSU JASUNG INTELLIGENT INDUSTRIAL TECHNOLOGY CO., LTD.

SNIEC E6.118

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Ball Mill Gearless Permanent Magnet Direct Drive Motor

Product Category: Complete processing plant

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Product Introduction

The PMDD motor is a high-efficiency drive system that directly couples a permanent magnet synchronous motor (PMSM) with the load, eliminating intermediate transmission components like gearboxes or pulleys. Its core operational principles are as follows: Magnetic Field Generation​​ ◇ Stator Composed of three-phase windings that generate a rotating magnetic field​when powered by variable-frequency AC. ◇ Rotor Embedded with high-performance permanent magnets (e.g., NdFeB), creating a fixed magnetic field. No external excitation or brushes/slip rings (brushless design). ◇ Synchronous Operation​​ Interaction between the stator's rotating field and rotor's permanent magnetic field forces the rotor to rotate at synchronous speed(Slip=0). Speed is precisely adjusted (0–100% rated speed) via frequency control. ◇ Direct Load Coupling​​ ◇ Transmission efficiency >98% (vs. 90–95% for geared systems). ◇ Eliminates gear wear/belt slippage. ◇ Torque Control​​ ◇ Uses FOC (Field-Oriented Control) or DTC (Direct Torque Control) to regulate torque via current phase adjustment.

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International Trade Fair for Construction Machinery, Building Material Machines, Mining Machines and Construction Vehicles

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